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authorDavid Edelsohn <dje.gcc@gmail.com>2021-04-22 14:52:22 -0400
committerDavid Edelsohn <dje.gcc@gmail.com>2021-04-22 19:38:36 -0400
commitb5f79f4d3808294192ec7438718aa54cf8982128 (patch)
treef1afb48a5d40df817c9458614b6b8a60455e5d92 /libstdc++-v3/config
parent4e1aaf32ddf13cc79fcf146d6b62a6e0feb82be0 (diff)
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aix: delete AIX pre-PowerPC version of atomicity.h
The AIX-specific version of atomicity.h that provides compatibility for the origina POWER architecture without atomic instructions no longer is referenced. This patch deletes the file. libstdc++-v3/ChangeLog: * config/os/aix/atomicity.h: Delete.
Diffstat (limited to 'libstdc++-v3/config')
-rw-r--r--libstdc++-v3/config/os/aix/atomicity.h56
1 files changed, 0 insertions, 56 deletions
diff --git a/libstdc++-v3/config/os/aix/atomicity.h b/libstdc++-v3/config/os/aix/atomicity.h
deleted file mode 100644
index 13a51da..0000000
--- a/libstdc++-v3/config/os/aix/atomicity.h
+++ /dev/null
@@ -1,56 +0,0 @@
-// Low-level functions for atomic operations: AIX version -*- C++ -*-
-
-// Copyright (C) 2000-2021 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library. This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-
-// Under Section 7 of GPL version 3, you are granted additional
-// permissions described in the GCC Runtime Library Exception, version
-// 3.1, as published by the Free Software Foundation.
-
-// You should have received a copy of the GNU General Public License and
-// a copy of the GCC Runtime Library Exception along with this program;
-// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-// <http://www.gnu.org/licenses/>.
-
-#include <ext/atomicity.h>
-
-/* We cannot use the cpu/powerpc/bits/atomicity.h inline assembly
- definitions for these operations since they depend on operations
- that are not available on the original POWER architecture. AIX
- still runs on the POWER architecture, so it would be incorrect to
- assume the existence of these instructions.
-
- The definition of _Atomic_word must match the type pointed to by
- atomic_p in <sys/atomic_op.h>. */
-
-extern "C"
-{
-#include <sys/atomic_op.h>
-}
-
-namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
-{
-_GLIBCXX_BEGIN_NAMESPACE_VERSION
-
- _Atomic_word
- __attribute__ ((__unused__))
- __exchange_and_add (volatile _Atomic_word* __mem, int __val) throw ()
- { return ::fetch_and_add(const_cast<atomic_p>(__mem), __val); }
-
- void
- __attribute__ ((__unused__))
- __atomic_add (volatile _Atomic_word* __mem, int __val) throw ()
- { (void) ::fetch_and_add(const_cast<atomic_p>(__mem), __val); }
-
-_GLIBCXX_END_NAMESPACE_VERSION
-} // namespace